!5531 ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()

Merge Pull Request from: @ci-robot 
 
PR sync from: Dong Chenchen <dongchenchen2@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/SJPGGWMK4ALZINWX4H73Z2SOBPMZR5GZ/ 
 
https://gitee.com/src-openeuler/kernel/issues/I99K08 
 
Link:https://gitee.com/openeuler/kernel/pulls/5531

 

Reviewed-by: Liu YongQiang <liuyongqiang13@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>